201553540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{907}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 435665664

約数和(自身を除く): 234112124

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 271, 410, 542, 820, 907, 1084, 1355, 1814, 2710, 3628, 4535, 5420, 9070, 11111, 18140, 22222, 37187, 44444, 55555, 74374, 111110, 148748, 185935, 222220, 245797, 371870, 491594, 743740, 983188, 1228985, 2457970, 4915940, 10077677, 20155354, 40310708, 50388385, 100776770, 201553540]

約数ペア:

[(1, 201553540), (2, 100776770), (4, 50388385), (5, 40310708), (10, 20155354), (20, 10077677), (41, 4915940), (82, 2457970), (164, 1228985), (205, 983188), (271, 743740), (410, 491594), (542, 371870), (820, 245797), (907, 222220), (1084, 185935), (1355, 148748), (1814, 111110), (2710, 74374), (3628, 55555), (4535, 44444), (5420, 37187), (9070, 22222), (11111, 18140)]